TypeError: sequence item 0: expected str instance, numpy.bytes_ found

[dpryan79]

This was reported via Galaxy. If one uses --outFileCorMatrix (possibly only under python 3), the following error occurs:

Traceback (most recent call last):
  File "/export/tool_deps/_conda/envs/[email protected]/bin/plotCorrelation", line 11, in <module>
    main(args)
  File "/export/tool_deps/_conda/envs/[email protected]/lib/python3.5/site-packages/deeptools/plotCorrelation.py", line 224, in main
    corr.save_corr_matrix(args.outFileCorMatrix)
  File "/export/tool_deps/_conda/envs/[email protected]/lib/python3.5/site-packages/deeptools/correlation.py", line 168, in save_corr_matrix
    file_handle.write("\t'" + "'\t'".join(self.labels) + "'\n")
TypeError: sequence item 0: expected str instance, numpy.bytes_ found

I'm testing if this is python 3 only now.

[dpryan79]

My fix branch seems to solve the problem. I've made this live on our public Galaxy instance, but since no one else has mentioned this issue I suspect not many others are using this particular feature (or if so, they're using python 2). I'll hold off on making an actual release from this until someone else mentions bumping into it (otherwise, it'll just get fixed in deepTools 3).